STEM · Full roadmap · ~180 min read · 45 steps

📡Cisco CCNA (200-301)

Master networking fundamentals and pass the Cisco CCNA 200-301 exam

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Learning path

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What the CCNA is and how the exam works

Network components

Network topologies and architectures

The OSI and TCP/IP models

Encapsulation and the PDU names

Cabling, interfaces, and transceivers

TCP versus UDP and common ports

IPv4 addressing and address classes

Subnetting foundations and CIDR

Subnetting worked example, finding network and broadcast

VLSM and counting subnets

Wildcard masks

IPv6 addressing

IPv6 EUI-64 and SLAAC

VLANs and trunking

Inter-VLAN routing

EtherChannel

Spanning Tree Protocol

PortFast and BPDU Guard

CDP and LLDP

Wireless fundamentals

Wireless security

The routing table and path selection

Static routing

Dynamic routing and OSPF concepts

Configuring OSPF single area

First-hop redundancy with HSRP

NAT and PAT

DHCP and the DORA process

DNS, NTP, SNMP, and Syslog

QoS basics and file transfer

Securing device access with SSH

Security fundamentals and the CIA triad

AAA and device hardening

Port security

Layer 2 threats, DHCP snooping, and DAI

Access control lists

VPNs at a high level

Automation, controllers, and software-defined networking

REST APIs, JSON, and config management tools

Hands-on practice and the IOS CLI

The boot sequence and troubleshooting habits

Exam logistics and study plan

Where to go next

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